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Re: 600kV voltmeter
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- Subject: Re: 600kV voltmeter
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Wed, 16 Mar 2005 12:53:26 -0700
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Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>
Volts x Amps, of course, equals power. As the waveform drops the power
drops. Without power, especially current, the heating factor drops and the
streamer dies. No power --- no streamer.
Erratic paths caused by stray ions and cosmic rays.
> > FWIW, I had this epiphany a few months back. What happens every 10mS
> > that makes the spark channel dissipate?
> > Or as Richard Hull posed, why does the streamer *go out* at all?
> > Why don't all streamers follow the same channel? I suppose the same
> > goes for non-TC sparks...
> >-Phil LaBudde
> Hi Phil,
> Interesting questions. I took a shot at answering some of these on
> Wikipedia - go to http://en.wikipedia.org/wiki/Tesla_coil and read the
> do Tesla Coil Sparks jump to open air?" section. Feel free to
> edit/change/add as appropriate... it IS a Wiki... :^)
> The 10 mS thing mostly has to do with the spark channel cooling down
> between shots. The thinner the channel, the more rapidly it cools down.
> Cool air is denser and harder to "break down". This (plus space charge
> effects at the streamer tips) is why the streamer root seems to change
> slowly, while the far ends constantly dart and change location. Space
> charge effects are also likely the reason why a well established discharge
> path may suddenly become replaced by a new path on the opposite side of
> This effect is also what limits high current spark gaps to repetition
> of ~100 Hz without external air flow/cooling. At faster rates, the gap
> doesn't have a chance to fully recover its dielectric strength between
> Best regards,
> -- Bert --